Turns Informer is a term used to describe someone who has betrayed their friends or colleagues by providing information to the authorities. This person is often referred to as a 'SNITCH' or an informant. The two crossword solutions for this term are SQUEALS (7 letters) and RATS (4 letters). SQUEALS refers to the sound made by a rat when it is caught, while RATS is a slang term for an informant. Both terms are used to describe someone who has turned informer.